CVE Database
/

CVE-2021-3321

Back to search

CVE-2021-3321

Published: Oct 12, 2021

Modified: Sep 16, 2024

PUBLISHED

CVSS v3.1

7.5

HIGH

Description

Integer Underflow in Zephyr in IEEE 802154 Fragment Reassembly Header Removal. Zephyr versions >= >=2.4.0 contain Integer Overflow to Buffer Overflow (CWE-680). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-w44j-66g7-xw99

VendorProductVersions

zephyrproject-rtos

zephyr

affected
>=2.4.0 - < unspecified

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H

Attack Vector

Adjacent

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

High

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Start Training

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.

Scan Now